An instrument used to count the frequency of recurrent electronic events and display the count on the panel of the instrument in numeric form. May also include facilities for a readout printed on tape. May include facilities for a very accurate output which can be used as a secondary transfer standard. It can be used to measure frequency, period, time interval, phase angle, frequency ratio, and for multiple period averaging. See also counter, electronic, digital and indicator, digital display.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 5996-01-543-9058
NSN 5835-01-100-3265
NSN 6610-00-466-3104
NSN 4140-01-333-9610
NSN 4140-00-432-5593
NSN 5990-00-518-3195
NSN 6130-01-634-0603
NSN 6645-00-130-8464
NSN 5996-01-147-1925
NSN 6220-01-623-1883
NSN 5905-01-099-9496
NSN 5999-00-315-3454